Have asked for help here numerous times - still car must warm up for 10 minutes before I can gas it and not have afm pop or cut out altogether. Have replaced all sensors, cold start valve, thermotime, air regulator. Have a used afm that I put in and am wondering if it's the problem. It's a federal afm and I have a CAlornia 77 280z coupe. Guessing it might be an air problem, but really don''t know. Any ideas- am at my wits end on this.